package TUILayer;//makes this class a part of the TUILayer package
import java.util.Scanner;
import ControlLayer.*;//The TUILayer needs to know the ControlLayer
/**
 * 
 * User interface - main menu
 * The entry-point for the application:
 * Create an instance of class MainMenuUI and the constructor starts the application
 * 
 * @author (kbh) 
 * @version (2005.03.31)
 * (FEN): 2006.02.24: Comments translated into English
 * (FEN): 2006.03.21: Some changes to the architecture in order to assure layering
 *                    and loose coupling
 *                    
 * (KBH): 2008.10.24: Change af manimenuStart to if
 */
public class MainMenuUI
{
    //the reference to the ControlLayer
    private AddressBookUI adrUI;//references to other UI objects
    private DvdUI dvdUI;
    private LoanUI loanUI;

    /**
     * constructor for the class
     */
    public MainMenuUI()
    {

    }

    /**
     * this method starts the main menu
     */
    public void mainMenuStart()
    {
        boolean exit=false;
        while (!exit) //! means while exit not is true (that is: false)
        {
            int choise = writeMainMenu();
            if(choise == 1)
            {
                startAddressBook();
            }
            else{
                if(choise == 2){ 
                    startDvd();
                }
                else{
                    if(choise == 3){
                        startLoan(); 
                    }//end if
                    else{
                        writeEnd();
                        exit = true;
                    }//end else
                }// end else
            }//end else
        }//end while
    }//end start

    /**
     * this method prints out the opportunities in this menu
     * @return choise
     */
    private int writeMainMenu()
    {       
        // creates a keyboard object to read input
        Scanner keyboard = new Scanner(System.in);
        System.out.println("\f *** MainMenu ***");
        System.out.println(" (1) AddressBook");
        System.out.println(" (2) DVDs");
        System.out.println(" (3) Loan");
        System.out.println(" (4) Close");
        System.out.print("\n Make your choise: ");

        int choise = keyboard.nextInt();

        return choise;
    }

    //     is to be coded later. 
    private void startAddressBook()
    {
        adrUI= new AddressBookUI();
        adrUI.start();
        //the adrUI needs to have a reference to the address controller
        //main controller can return references to the other controllers

    }
    // to be coded later.
    private void startDvd()
    {
        //         dvdUI= new DvdUI();
        //         dvdUI.start();
        //the DvdUI needs to have a reference to the DVD controller
        //main controller can return references to the other controllers

    }

    private void startLoan()
    {
        loanUI = new LoanUI();
    }

    private void writeEnd()
    {
        System.out.println(" The System is shuting down ");
    }
}
